Merge branch 'depends/rmk/memory_h' into next/cleanup2
[linux-3.10.git] / arch / arm / mach-omap2 / board-overo.c
1 /*
2  * board-overo.c (Gumstix Overo)
3  *
4  * Initial code: Steve Sakoman <steve@sakoman.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18  * 02110-1301 USA
19  *
20  */
21
22 #include <linux/clk.h>
23 #include <linux/delay.h>
24 #include <linux/err.h>
25 #include <linux/init.h>
26 #include <linux/io.h>
27 #include <linux/gpio.h>
28 #include <linux/kernel.h>
29 #include <linux/platform_device.h>
30 #include <linux/i2c/twl.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/regulator/fixed.h>
33 #include <linux/spi/spi.h>
34
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/nand.h>
37 #include <linux/mtd/partitions.h>
38 #include <linux/mmc/host.h>
39
40 #include <asm/mach-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/flash.h>
43 #include <asm/mach/map.h>
44
45 #include <plat/board.h>
46 #include <plat/common.h>
47 #include <video/omapdss.h>
48 #include <video/omap-panel-generic-dpi.h>
49 #include <plat/gpmc.h>
50 #include <mach/hardware.h>
51 #include <plat/nand.h>
52 #include <plat/mcspi.h>
53 #include <plat/mux.h>
54 #include <plat/usb.h>
55
56 #include "mux.h"
57 #include "sdram-micron-mt46h32m32lf-6.h"
58 #include "hsmmc.h"
59 #include "common-board-devices.h"
60
61 #define OVERO_GPIO_BT_XGATE     15
62 #define OVERO_GPIO_W2W_NRESET   16
63 #define OVERO_GPIO_PENDOWN      114
64 #define OVERO_GPIO_BT_NRESET    164
65 #define OVERO_GPIO_USBH_CPEN    168
66 #define OVERO_GPIO_USBH_NRESET  183
67
68 #define OVERO_SMSC911X_CS      5
69 #define OVERO_SMSC911X_GPIO    176
70 #define OVERO_SMSC911X2_CS     4
71 #define OVERO_SMSC911X2_GPIO   65
72
73 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
74         defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
75
76 /* fixed regulator for ads7846 */
77 static struct regulator_consumer_supply ads7846_supply[] = {
78         REGULATOR_SUPPLY("vcc", "spi1.0"),
79 };
80
81 static struct regulator_init_data vads7846_regulator = {
82         .constraints = {
83                 .valid_ops_mask         = REGULATOR_CHANGE_STATUS,
84         },
85         .num_consumer_supplies  = ARRAY_SIZE(ads7846_supply),
86         .consumer_supplies      = ads7846_supply,
87 };
88
89 static struct fixed_voltage_config vads7846 = {
90         .supply_name            = "vads7846",
91         .microvolts             = 3300000, /* 3.3V */
92         .gpio                   = -EINVAL,
93         .startup_delay          = 0,
94         .init_data              = &vads7846_regulator,
95 };
96
97 static struct platform_device vads7846_device = {
98         .name           = "reg-fixed-voltage",
99         .id             = 1,
100         .dev = {
101                 .platform_data = &vads7846,
102         },
103 };
104
105 static void __init overo_ads7846_init(void)
106 {
107         omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
108         platform_device_register(&vads7846_device);
109 }
110
111 #else
112 static inline void __init overo_ads7846_init(void) { return; }
113 #endif
114
115 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
116
117 #include <linux/smsc911x.h>
118 #include <plat/gpmc-smsc911x.h>
119
120 static struct omap_smsc911x_platform_data smsc911x_cfg = {
121         .id             = 0,
122         .cs             = OVERO_SMSC911X_CS,
123         .gpio_irq       = OVERO_SMSC911X_GPIO,
124         .gpio_reset     = -EINVAL,
125         .flags          = SMSC911X_USE_32BIT,
126 };
127
128 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
129         .id             = 1,
130         .cs             = OVERO_SMSC911X2_CS,
131         .gpio_irq       = OVERO_SMSC911X2_GPIO,
132         .gpio_reset     = -EINVAL,
133         .flags          = SMSC911X_USE_32BIT,
134 };
135
136 static void __init overo_init_smsc911x(void)
137 {
138         gpmc_smsc911x_init(&smsc911x_cfg);
139         gpmc_smsc911x_init(&smsc911x2_cfg);
140 }
141
142 #else
143 static inline void __init overo_init_smsc911x(void) { return; }
144 #endif
145
146 /* DSS */
147 static int lcd_enabled;
148 static int dvi_enabled;
149
150 #define OVERO_GPIO_LCD_EN 144
151 #define OVERO_GPIO_LCD_BL 145
152
153 static struct gpio overo_dss_gpios[] __initdata = {
154         { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
155         { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
156 };
157
158 static void __init overo_display_init(void)
159 {
160         if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
161                 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
162                 return;
163         }
164
165         gpio_export(OVERO_GPIO_LCD_EN, 0);
166         gpio_export(OVERO_GPIO_LCD_BL, 0);
167 }
168
169 static int overo_panel_enable_dvi(struct omap_dss_device *dssdev)
170 {
171         if (lcd_enabled) {
172                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
173                 return -EINVAL;
174         }
175         dvi_enabled = 1;
176
177         return 0;
178 }
179
180 static void overo_panel_disable_dvi(struct omap_dss_device *dssdev)
181 {
182         dvi_enabled = 0;
183 }
184
185 static struct panel_generic_dpi_data dvi_panel = {
186         .name                   = "generic",
187         .platform_enable        = overo_panel_enable_dvi,
188         .platform_disable       = overo_panel_disable_dvi,
189 };
190
191 static struct omap_dss_device overo_dvi_device = {
192         .name                   = "dvi",
193         .type                   = OMAP_DISPLAY_TYPE_DPI,
194         .driver_name            = "generic_dpi_panel",
195         .data                   = &dvi_panel,
196         .phy.dpi.data_lines     = 24,
197 };
198
199 static struct omap_dss_device overo_tv_device = {
200         .name = "tv",
201         .driver_name = "venc",
202         .type = OMAP_DISPLAY_TYPE_VENC,
203         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
204 };
205
206 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
207 {
208         if (dvi_enabled) {
209                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
210                 return -EINVAL;
211         }
212
213         gpio_set_value(OVERO_GPIO_LCD_EN, 1);
214         gpio_set_value(OVERO_GPIO_LCD_BL, 1);
215         lcd_enabled = 1;
216         return 0;
217 }
218
219 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
220 {
221         gpio_set_value(OVERO_GPIO_LCD_EN, 0);
222         gpio_set_value(OVERO_GPIO_LCD_BL, 0);
223         lcd_enabled = 0;
224 }
225
226 static struct panel_generic_dpi_data lcd43_panel = {
227         .name                   = "samsung_lte430wq_f0c",
228         .platform_enable        = overo_panel_enable_lcd,
229         .platform_disable       = overo_panel_disable_lcd,
230 };
231
232 static struct omap_dss_device overo_lcd43_device = {
233         .name                   = "lcd43",
234         .type                   = OMAP_DISPLAY_TYPE_DPI,
235         .driver_name            = "generic_dpi_panel",
236         .data                   = &lcd43_panel,
237         .phy.dpi.data_lines     = 24,
238 };
239
240 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
241         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
242 static struct omap_dss_device overo_lcd35_device = {
243         .type                   = OMAP_DISPLAY_TYPE_DPI,
244         .name                   = "lcd35",
245         .driver_name            = "lgphilips_lb035q02_panel",
246         .phy.dpi.data_lines     = 24,
247         .platform_enable        = overo_panel_enable_lcd,
248         .platform_disable       = overo_panel_disable_lcd,
249 };
250 #endif
251
252 static struct omap_dss_device *overo_dss_devices[] = {
253         &overo_dvi_device,
254         &overo_tv_device,
255 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
256         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
257         &overo_lcd35_device,
258 #endif
259         &overo_lcd43_device,
260 };
261
262 static struct omap_dss_board_info overo_dss_data = {
263         .num_devices    = ARRAY_SIZE(overo_dss_devices),
264         .devices        = overo_dss_devices,
265         .default_device = &overo_dvi_device,
266 };
267
268 static struct mtd_partition overo_nand_partitions[] = {
269         {
270                 .name           = "xloader",
271                 .offset         = 0,                    /* Offset = 0x00000 */
272                 .size           = 4 * NAND_BLOCK_SIZE,
273                 .mask_flags     = MTD_WRITEABLE
274         },
275         {
276                 .name           = "uboot",
277                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
278                 .size           = 14 * NAND_BLOCK_SIZE,
279         },
280         {
281                 .name           = "uboot environment",
282                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x240000 */
283                 .size           = 2 * NAND_BLOCK_SIZE,
284         },
285         {
286                 .name           = "linux",
287                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
288                 .size           = 32 * NAND_BLOCK_SIZE,
289         },
290         {
291                 .name           = "rootfs",
292                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
293                 .size           = MTDPART_SIZ_FULL,
294         },
295 };
296
297 static struct omap2_hsmmc_info mmc[] = {
298         {
299                 .mmc            = 1,
300                 .caps           = MMC_CAP_4_BIT_DATA,
301                 .gpio_cd        = -EINVAL,
302                 .gpio_wp        = -EINVAL,
303         },
304         {
305                 .mmc            = 2,
306                 .caps           = MMC_CAP_4_BIT_DATA,
307                 .gpio_cd        = -EINVAL,
308                 .gpio_wp        = -EINVAL,
309                 .transceiver    = true,
310                 .ocr_mask       = 0x00100000,   /* 3.3V */
311         },
312         {}      /* Terminator */
313 };
314
315 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
316         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
317 };
318
319 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
320 #include <linux/leds.h>
321
322 static struct gpio_led gpio_leds[] = {
323         {
324                 .name                   = "overo:red:gpio21",
325                 .default_trigger        = "heartbeat",
326                 .gpio                   = 21,
327                 .active_low             = true,
328         },
329         {
330                 .name                   = "overo:blue:gpio22",
331                 .default_trigger        = "none",
332                 .gpio                   = 22,
333                 .active_low             = true,
334         },
335         {
336                 .name                   = "overo:blue:COM",
337                 .default_trigger        = "mmc0",
338                 .gpio                   = -EINVAL,      /* gets replaced */
339                 .active_low             = true,
340         },
341 };
342
343 static struct gpio_led_platform_data gpio_leds_pdata = {
344         .leds           = gpio_leds,
345         .num_leds       = ARRAY_SIZE(gpio_leds),
346 };
347
348 static struct platform_device gpio_leds_device = {
349         .name   = "leds-gpio",
350         .id     = -1,
351         .dev    = {
352                 .platform_data  = &gpio_leds_pdata,
353         },
354 };
355
356 static void __init overo_init_led(void)
357 {
358         platform_device_register(&gpio_leds_device);
359 }
360
361 #else
362 static inline void __init overo_init_led(void) { return; }
363 #endif
364
365 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
366 #include <linux/input.h>
367 #include <linux/gpio_keys.h>
368
369 static struct gpio_keys_button gpio_buttons[] = {
370         {
371                 .code                   = BTN_0,
372                 .gpio                   = 23,
373                 .desc                   = "button0",
374                 .wakeup                 = 1,
375         },
376         {
377                 .code                   = BTN_1,
378                 .gpio                   = 14,
379                 .desc                   = "button1",
380                 .wakeup                 = 1,
381         },
382 };
383
384 static struct gpio_keys_platform_data gpio_keys_pdata = {
385         .buttons        = gpio_buttons,
386         .nbuttons       = ARRAY_SIZE(gpio_buttons),
387 };
388
389 static struct platform_device gpio_keys_device = {
390         .name   = "gpio-keys",
391         .id     = -1,
392         .dev    = {
393                 .platform_data  = &gpio_keys_pdata,
394         },
395 };
396
397 static void __init overo_init_keys(void)
398 {
399         platform_device_register(&gpio_keys_device);
400 }
401
402 #else
403 static inline void __init overo_init_keys(void) { return; }
404 #endif
405
406 static int overo_twl_gpio_setup(struct device *dev,
407                 unsigned gpio, unsigned ngpio)
408 {
409         omap2_hsmmc_init(mmc);
410
411 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
412         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
413         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
414 #endif
415
416         return 0;
417 }
418
419 static struct twl4030_gpio_platform_data overo_gpio_data = {
420         .gpio_base      = OMAP_MAX_GPIO_LINES,
421         .irq_base       = TWL4030_GPIO_IRQ_BASE,
422         .irq_end        = TWL4030_GPIO_IRQ_END,
423         .use_leds       = true,
424         .setup          = overo_twl_gpio_setup,
425 };
426
427 static struct regulator_init_data overo_vmmc1 = {
428         .constraints = {
429                 .min_uV                 = 1850000,
430                 .max_uV                 = 3150000,
431                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
432                                         | REGULATOR_MODE_STANDBY,
433                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
434                                         | REGULATOR_CHANGE_MODE
435                                         | REGULATOR_CHANGE_STATUS,
436         },
437         .num_consumer_supplies  = ARRAY_SIZE(overo_vmmc1_supply),
438         .consumer_supplies      = overo_vmmc1_supply,
439 };
440
441 static struct twl4030_platform_data overo_twldata = {
442         .gpio           = &overo_gpio_data,
443         .vmmc1          = &overo_vmmc1,
444 };
445
446 static int __init overo_i2c_init(void)
447 {
448         omap3_pmic_get_config(&overo_twldata,
449                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
450                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
451
452         overo_twldata.vpll2->constraints.name = "VDVI";
453
454         omap3_pmic_init("tps65950", &overo_twldata);
455         /* i2c2 pins are used for gpio */
456         omap_register_i2c_bus(3, 400, NULL, 0);
457         return 0;
458 }
459
460 static struct spi_board_info overo_spi_board_info[] __initdata = {
461 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
462         defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
463         {
464                 .modalias               = "lgphilips_lb035q02_panel-spi",
465                 .bus_num                = 1,
466                 .chip_select            = 1,
467                 .max_speed_hz           = 500000,
468                 .mode                   = SPI_MODE_3,
469         },
470 #endif
471 };
472
473 static int __init overo_spi_init(void)
474 {
475         overo_ads7846_init();
476         spi_register_board_info(overo_spi_board_info,
477                         ARRAY_SIZE(overo_spi_board_info));
478         return 0;
479 }
480
481 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
482         .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
483         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
484         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
485         .phy_reset  = true,
486         .reset_gpio_port[0]  = -EINVAL,
487         .reset_gpio_port[1]  = OVERO_GPIO_USBH_NRESET,
488         .reset_gpio_port[2]  = -EINVAL
489 };
490
491 #ifdef CONFIG_OMAP_MUX
492 static struct omap_board_mux board_mux[] __initdata = {
493         { .reg_offset = OMAP_MUX_TERMINATOR },
494 };
495 #endif
496
497 static struct gpio overo_bt_gpios[] __initdata = {
498         { OVERO_GPIO_BT_XGATE,  GPIOF_OUT_INIT_LOW,     "lcd enable"    },
499         { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH,    "lcd bl enable" },
500 };
501
502 static void __init overo_init(void)
503 {
504         int ret;
505
506         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
507         overo_i2c_init();
508         omap_display_init(&overo_dss_data);
509         omap_serial_init();
510         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
511                                   mt46h32m32lf6_sdrc_params);
512         omap_nand_flash_init(0, overo_nand_partitions,
513                              ARRAY_SIZE(overo_nand_partitions));
514         usb_musb_init(NULL);
515         usbhs_init(&usbhs_bdata);
516         overo_spi_init();
517         overo_init_smsc911x();
518         overo_display_init();
519         overo_init_led();
520         overo_init_keys();
521
522         /* Ensure SDRC pins are mux'd for self-refresh */
523         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
524         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
525
526         ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
527                                "OVERO_GPIO_W2W_NRESET");
528         if (ret == 0) {
529                 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
530                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
531                 udelay(10);
532                 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
533         } else {
534                 printk(KERN_ERR "could not obtain gpio for "
535                                         "OVERO_GPIO_W2W_NRESET\n");
536         }
537
538         ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
539         if (ret) {
540                 pr_err("%s: could not obtain BT gpios\n", __func__);
541         } else {
542                 gpio_export(OVERO_GPIO_BT_XGATE, 0);
543                 gpio_export(OVERO_GPIO_BT_NRESET, 0);
544                 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
545                 mdelay(6);
546                 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
547         }
548
549         ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
550                                "OVERO_GPIO_USBH_CPEN");
551         if (ret == 0)
552                 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
553         else
554                 printk(KERN_ERR "could not obtain gpio for "
555                                         "OVERO_GPIO_USBH_CPEN\n");
556 }
557
558 MACHINE_START(OVERO, "Gumstix Overo")
559         .atag_offset    = 0x100,
560         .reserve        = omap_reserve,
561         .map_io         = omap3_map_io,
562         .init_early     = omap35xx_init_early,
563         .init_irq       = omap3_init_irq,
564         .init_machine   = overo_init,
565         .timer          = &omap3_timer,
566 MACHINE_END